MGM rebranded all of its sportsbooks to fit under the BetMGM brand this year. Last month, Caesars Entertainment announced it had agreed to buy sports betting operator William Hill for $3.7 billion. declined to comment or did not respond to a request for comment on what sort of response, if any, their sportsbooks have to Circa’s opening, but public company documents show casino operators have been increasingly focused on their sports betting offerings. Representatives for Caesars Entertainment Inc., MGM Resorts International, Station Casinos, Wynn Resorts Ltd., Las Vegas Sands Corp. “Things just gain traction in Las Vegas and make their way across the entire Strip,” gaming consultant Sara Slane said.